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Digital control board debugging notes (view source)
Revision as of 19:23, 23 July 2009
, 19:23, 23 July 2009no edit summary
=== Other Details and Current Status ===
=== Other Details and Current Status ===
This problem was due to errors int he original schematics. The schematics have '''not yet been updated''' to reflect the solution.
This problem was due to errors int he original schematics. The schematics have '''not yet been updated''' to reflect the solution.
This modification has been implemented.
== Incorrect Oscillator ==
=== Description ===
The oscillator used was a standard crystal oscillator, however the FPGA requires a CMOS square wave input.
=== Solution ===
The crystal oscillator was replaced with a FOX FXO-HC53 HCMOS oscillator running at 20 Mhz.
Schematic:[[Image:osc.png]]
=== Other Details and Current Status ===
The schematics have '''not yet been updated''' to reflect the solution.
This modification has been implemented.
This modification has been implemented.